A picture taken on May 7, 2015 shows a 50-kilogramme (110-pound) silver bar which was allegedly recovered by Marine archaeologist Barry Clifford in the wreck of William Kidd’s ship, on the Island of Sainte Marie. A team of American explorers today claimed to have discovered silver treasure from the infamous 17th-century Scottish pirate William Kidd in a shipwreck off the coast of Madagascar. AFP PHOTO/MANJAKAHERY TSIRESENA